From 1f8af3a5e033a00ef38953caa14ee96bfaa8a1b2 Mon Sep 17 00:00:00 2001
From: "Vassiliy.Kudryashov" <Vassiliy.Kudryashov@jetbrains.com>
Date: Mon, 14 Sep 2015 12:20:48 +0300
Subject: [PATCH] Check if toolwindow has been registered.

---
 .../src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
index 1a6ce8b3e8e0..aaf7e09b44c3 100644
--- a/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/wm/impl/ToolWindowManagerImpl.java
@@ -502,7 +502,7 @@ public final class ToolWindowManagerImpl extends ToolWindowManagerEx implements
           ApplicationManager.getApplication().invokeLater(new Runnable() {
             @Override
             public void run() {
-              if (!myProject.isDisposed()) {
+              if (!myProject.isDisposed() && getToolWindow(bean.id) == null) {
                 initToolWindow(bean);
               }
             }